EP3692012A1 - Verfahren zur gewinnung von wertstoffen - Google Patents
Verfahren zur gewinnung von wertstoffenInfo
- Publication number
- EP3692012A1 EP3692012A1 EP18781999.0A EP18781999A EP3692012A1 EP 3692012 A1 EP3692012 A1 EP 3692012A1 EP 18781999 A EP18781999 A EP 18781999A EP 3692012 A1 EP3692012 A1 EP 3692012A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- reactor
- vapor
- solution
- medium
- liquid medium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000000126 substance Substances 0.000 title claims abstract description 30
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 63
- 239000007788 liquid Substances 0.000 claims abstract description 62
- 239000002699 waste material Substances 0.000 claims abstract description 55
- 150000002894 organic compounds Chemical class 0.000 claims abstract description 49
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 44
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 27
- 239000007787 solid Substances 0.000 claims abstract description 23
- 238000005406 washing Methods 0.000 claims abstract description 18
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims abstract description 12
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 12
- 239000004254 Ammonium phosphate Substances 0.000 claims abstract description 9
- 235000019289 ammonium phosphates Nutrition 0.000 claims abstract description 9
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910000148 ammonium phosphate Inorganic materials 0.000 claims abstract description 7
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 7
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 6
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 5
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 61
- 150000003839 salts Chemical class 0.000 claims description 40
- 239000000243 solution Substances 0.000 claims description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 38
- 239000012071 phase Substances 0.000 claims description 29
- 239000008346 aqueous phase Substances 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 22
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 21
- 238000004821 distillation Methods 0.000 claims description 21
- 230000008569 process Effects 0.000 claims description 16
- 239000000725 suspension Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 13
- 239000001257 hydrogen Substances 0.000 claims description 13
- 238000002309 gasification Methods 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 11
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 11
- 239000012528 membrane Substances 0.000 claims description 11
- 238000011084 recovery Methods 0.000 claims description 10
- 239000002585 base Substances 0.000 claims description 9
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 8
- 238000007667 floating Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 238000005201 scrubbing Methods 0.000 claims description 7
- 238000000926 separation method Methods 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000012074 organic phase Substances 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 6
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 238000005868 electrolysis reaction Methods 0.000 claims description 5
- 238000009795 derivation Methods 0.000 claims description 4
- DPLVEEXVKBWGHE-UHFFFAOYSA-N potassium sulfide Chemical compound [S-2].[K+].[K+] DPLVEEXVKBWGHE-UHFFFAOYSA-N 0.000 claims description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims description 3
- 239000003513 alkali Substances 0.000 claims description 3
- 229930195733 hydrocarbon Natural products 0.000 claims description 3
- 150000002430 hydrocarbons Chemical class 0.000 claims description 3
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 claims description 3
- 229910052979 sodium sulfide Inorganic materials 0.000 claims description 3
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 230000003301 hydrolyzing effect Effects 0.000 claims description 2
- 239000001166 ammonium sulphate Substances 0.000 claims 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 1
- 235000011149 sulphuric acid Nutrition 0.000 abstract description 4
- 239000001117 sulphuric acid Substances 0.000 abstract 3
- 230000007062 hydrolysis Effects 0.000 description 30
- 238000006460 hydrolysis reaction Methods 0.000 description 30
- 229910001385 heavy metal Inorganic materials 0.000 description 26
- 210000004027 cell Anatomy 0.000 description 23
- 235000011007 phosphoric acid Nutrition 0.000 description 22
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 18
- 239000003921 oil Substances 0.000 description 16
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 16
- 239000000463 material Substances 0.000 description 15
- 239000010801 sewage sludge Substances 0.000 description 14
- 239000007789 gas Substances 0.000 description 13
- 238000000197 pyrolysis Methods 0.000 description 13
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 239000000306 component Substances 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 10
- 229910052757 nitrogen Inorganic materials 0.000 description 9
- 229910017464 nitrogen compound Inorganic materials 0.000 description 9
- 150000002830 nitrogen compounds Chemical class 0.000 description 9
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 8
- 239000008151 electrolyte solution Substances 0.000 description 8
- 229910052698 phosphorus Inorganic materials 0.000 description 8
- 239000011574 phosphorus Substances 0.000 description 8
- 229910000027 potassium carbonate Inorganic materials 0.000 description 8
- -1 ammonium ions Chemical class 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 239000000470 constituent Substances 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 159000000001 potassium salts Chemical class 0.000 description 7
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 6
- 210000003608 fece Anatomy 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 239000011591 potassium Substances 0.000 description 6
- 150000004763 sulfides Chemical class 0.000 description 6
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 5
- 239000010871 livestock manure Substances 0.000 description 5
- 235000018102 proteins Nutrition 0.000 description 5
- 102000004169 proteins and genes Human genes 0.000 description 5
- 108090000623 proteins and genes Proteins 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- 150000001335 aliphatic alkanes Chemical class 0.000 description 4
- 150000001412 amines Chemical class 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000003337 fertilizer Substances 0.000 description 4
- 230000004992 fission Effects 0.000 description 4
- 229910052816 inorganic phosphate Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 235000021317 phosphate Nutrition 0.000 description 4
- 238000007086 side reaction Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 239000011593 sulfur Substances 0.000 description 4
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 description 3
- 241001465754 Metazoa Species 0.000 description 3
- 150000003863 ammonium salts Chemical class 0.000 description 3
- 230000000035 biogenic effect Effects 0.000 description 3
- 238000009792 diffusion process Methods 0.000 description 3
- 230000003204 osmotic effect Effects 0.000 description 3
- 229910000160 potassium phosphate Inorganic materials 0.000 description 3
- 235000011009 potassium phosphates Nutrition 0.000 description 3
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 2
- 150000001298 alcohols Chemical class 0.000 description 2
- 235000001014 amino acid Nutrition 0.000 description 2
- 150000001413 amino acids Chemical class 0.000 description 2
- ZRIUUUJAJJNDSS-UHFFFAOYSA-N ammonium phosphates Chemical class [NH4+].[NH4+].[NH4+].[O-]P([O-])([O-])=O ZRIUUUJAJJNDSS-UHFFFAOYSA-N 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- 159000000007 calcium salts Chemical class 0.000 description 2
- 235000014633 carbohydrates Nutrition 0.000 description 2
- 150000001720 carbohydrates Chemical class 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000000839 emulsion Substances 0.000 description 2
- 150000002148 esters Chemical class 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000000855 fermentation Methods 0.000 description 2
- 230000004151 fermentation Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 150000002576 ketones Chemical class 0.000 description 2
- 239000012263 liquid product Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 150000007524 organic acids Chemical class 0.000 description 2
- 235000005985 organic acids Nutrition 0.000 description 2
- 150000002891 organic anions Chemical class 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 2
- 239000010452 phosphate Substances 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 239000013049 sediment Substances 0.000 description 2
- 239000007790 solid phase Substances 0.000 description 2
- 150000003626 triacylglycerols Chemical class 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000002028 Biomass Substances 0.000 description 1
- 241000283690 Bos taurus Species 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 241000195493 Cryptophyta Species 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 241000287828 Gallus gallus Species 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- IMQLKJBTEOYOSI-GPIVLXJGSA-N Inositol-hexakisphosphate Chemical class OP(O)(=O)O[C@H]1[C@H](OP(O)(O)=O)[C@@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@H](OP(O)(O)=O)[C@@H]1OP(O)(O)=O IMQLKJBTEOYOSI-GPIVLXJGSA-N 0.000 description 1
- 238000006576 Kolbe electrolysis reaction Methods 0.000 description 1
- XUJNEKJLAYXESH-REOHCLBHSA-N L-Cysteine Chemical compound SC[C@H](N)C(O)=O XUJNEKJLAYXESH-REOHCLBHSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 239000002956 ash Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- 235000010216 calcium carbonate Nutrition 0.000 description 1
- 239000001506 calcium phosphate Substances 0.000 description 1
- 229910000389 calcium phosphate Inorganic materials 0.000 description 1
- 235000011010 calcium phosphates Nutrition 0.000 description 1
- 150000007942 carboxylates Chemical group 0.000 description 1
- 210000000170 cell membrane Anatomy 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- XUJNEKJLAYXESH-UHFFFAOYSA-N cysteine Natural products SCC(N)C(O)=O XUJNEKJLAYXESH-UHFFFAOYSA-N 0.000 description 1
- 235000018417 cysteine Nutrition 0.000 description 1
- 238000002242 deionisation method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- KFGJICJPSZZEEP-UHFFFAOYSA-L dipotassium;hydrogen phosphate;hydrate Chemical class O.[K+].[K+].OP([O-])([O-])=O KFGJICJPSZZEEP-UHFFFAOYSA-L 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 239000010685 fatty oil Substances 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 230000009969 flowable effect Effects 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 239000012533 medium component Substances 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 150000007523 nucleic acids Chemical class 0.000 description 1
- 102000039446 nucleic acids Human genes 0.000 description 1
- 108020004707 nucleic acids Proteins 0.000 description 1
- 238000010534 nucleophilic substitution reaction Methods 0.000 description 1
- 239000003129 oil well Substances 0.000 description 1
- 239000010815 organic waste Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- ATGAWOHQWWULNK-UHFFFAOYSA-I pentapotassium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical class [K+].[K+].[K+].[K+].[K+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O ATGAWOHQWWULNK-UHFFFAOYSA-I 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
- 125000002467 phosphate group Chemical group [H]OP(=O)(O[H])O[*] 0.000 description 1
- 150000003904 phospholipids Chemical class 0.000 description 1
- 235000002949 phytic acid Nutrition 0.000 description 1
- 235000011056 potassium acetate Nutrition 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 239000012855 volatile organic compound Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C3/00—Fertilisers containing other salts of ammonia or ammonia itself, e.g. gas liquor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D11/00—Solvent extraction
- B01D11/02—Solvent extraction of solids
- B01D11/028—Flow sheets
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/20—Treatment of water, waste water, or sewage by degassing, i.e. liberation of dissolved gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/469—Treatment of water, waste water, or sewage by electrochemical methods by electrochemical separation, e.g. by electro-osmosis, electrodialysis, electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/006—Electrochemical treatment, e.g. electro-oxidation or electro-osmosis
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/18—Treatment of sludge; Devices therefor by thermal conditioning
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/005—Fertilisers made from animal corpses, or parts thereof from meat-wastes or from other wastes of animal origin, e.g. skins, hair, hoofs, feathers, blood
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F1/00—Fertilisers made from animal corpses, or parts thereof
- C05F1/007—Fertilisers made from animal corpses, or parts thereof from derived products of animal origin or their wastes, e.g. leather, dairy products
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F3/00—Fertilisers from human or animal excrements, e.g. manure
- C05F3/06—Apparatus for the manufacture
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F5/00—Fertilisers from distillery wastes, molasses, vinasses, sugar plant or similar wastes or residues, e.g. from waste originating from industrial processing of raw material of agricultural origin or derived products thereof
- C05F5/002—Solid waste from mechanical processing of material, e.g. seed coats, olive pits, almond shells, fruit residue, rice hulls
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F7/00—Fertilisers from waste water, sewage sludge, sea slime, ooze or similar masses
- C05F7/005—Waste water from industrial processing material neither of agricultural nor of animal origin
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/02—Apparatus for the manufacture
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/105—Phosphorus compounds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/20—Heavy metals or heavy metal compounds
Definitions
- the invention relates to a process for obtaining valuable substances from organic compounds contained in waste or chemical elements contained therein.
- waste in particular includes sewage sludge, liquid manure, cattle manure, slaughterhouse animal meal and biowaste or biomass.
- wastes contain a variety of complex chemical compounds and often have a very high water content. Components of these compounds are, for example, amino groups or phosphate groups which are used to obtain
- Sewage sludge contains, for example, nitrogen and phosphorus suitable for fertilization, but often has a high content of heavy metals and / or residues of medicines and can therefore not or only partially be used directly as a fertilizer.
- sewage sludge as a fertilizer in Europe is subject to a directive which sets limits for heavy metal concentrations.
- the invention is therefore based on the object to provide a method which eliminates the mentioned in the utilization of waste existing barriers to use and thus enables economic recovery of recyclables from the waste.
- the object is achieved according to the invention by a method of the type mentioned with the following successive steps: a) mixing the waste with a base so that a liquid medium is formed, b) heating the medium in a reactor to a temperature of 100 ° C. to 140 ° C for hydrolyzing the organic compounds contained in the medium and deduction of the forming vapor,
- Wash column is obtained a solution and the vapors from the head of the
- step b3) passing the solution obtained in step b2) into an electrochemical cell having a cathode space and an anode space and electrolyzing the solution, sulfuric acid or phosphoric acid being recovered in step 2) in the anode space, b4) returning the recovered sulfuric acid or phosphoric acid from the
- step c) passing the liquid medium remaining in the reactor in step b) into a separating device for separating off a solid inorganic phase which may be present in the liquid medium.
- the organic compounds of the waste are brought into solution in a liquid medium, so that a very easily transportable medium is obtained. Since the hydrolysis according to step b) is carried out at a temperature of 100 ° to 140 ° C, organic salts are formed from the organic compounds contained in the medium without decomposition and with a high degree of conversion, which dissolve in the liquid medium. At least the majority of any unhydrolyzed organic compounds have a lower density than the other liquid medium so that they float on top of the medium. From the vapors formed in step b) recyclables can be recovered,
- the addition of the acid further acidifies the solution so that the equilibrium NH 3 + H 3 O + NH 4 + + H 2 O shifts on the side of the ammonium ions (NH 4 + ) or the ammonium salts ,
- the ammonium ions are - in contrast to the
- Ammonium phosphates or ammonium sulfates very well accessible to electrolysis, happen in the electrochemical cell located in this membrane and get into the cathode compartment, in which an ammonia solution is formed from these.
- step b3) the acid used in step b2) is recovered immediately. This represents a valuable material and will be returned immediately in step b4). Furthermore, in the course of step b3) in the anode compartment as further valuable substances in particular, an ammonia solution and hydrogen are recovered, which are derived according to b4).
- step b) medium is still well flowable and therefore has a low viscosity. Any inorganic constituents already sediment in
- the inorganic fraction obtained by step c) contains insoluble in the medium
- any heavy metal salts are quantitatively separated from the medium.
- Recyclable materials in particular any heavy metals, can be obtained from the inorganic fraction.
- any heavy metal salts contained in the inorganic fraction are not bound in an inorganic matrix, so that the further treatment of the inorganic fraction is possible in a simpler manner. Due to the early separation of any inorganic constituents, a further treatment of the still organic compounds, which is at least largely free of side reactions, is additionally provided below
- step a) is already carried out in the reactor.
- step a) is carried out in a separate mixer, whereby first the
- step a) the waste and the base on 60 ° C to 70 ° C are heated. As a result, the pumpability of the medium is improved, with the medium already having first, otherwise only taking place in step b),
- step a) the waste is mixed with an aqueous
- Potassium carbonate solution an aqueous sodium carbonate solution or mixed with a mixture of at least two of these solutions.
- the waste in question for example sewage sludge, often itself contains potassium.
- These bases are known industrial chemicals whose handling is advantageously well-proven and unproblematic.
- step a) the amount and / or the concentration of the base is or are chosen such that the liquid medium formed has a pH of 9.0 to 14.0, in particular of at least 12.0 , wherein preferably
- the organic compounds are hydrolyzed to a particularly large extent.
- this pH in particular in combination with the heating of the medium taking place in step b) above 100 ° C., all or almost all microorganisms are killed.
- step b) the liquid medium is preferably stirred while stirring
- a sulfide solution in particular a potassium sulfide or a sodium sulfide solution, is added in step b). Sulfides dissolve in the liquid medium and, together with any heavy metals present in the medium, form sparingly soluble heavy metal sulfides which precipitate in the medium. The precipitated heavy metals are separated in the subsequent step c) and are part of the mentioned solid inorganic phase.
- a sulfide solution is particularly advantageous if the waste used a high
- Step a) preferably already potassium hydroxide solution or sodium hydroxide solution is used, is particularly preferred as sulfide solution potassium sulfide or sodium sulfide solution.
- water is introduced into the cathode space in step b3).
- This causes an osmotic pressure gradient which forces a flow from the cathode space to the anode space, thereby preventing the diffusion of residual organic anions from anode space into the cathode space. This keeps the membrane clean between the anode and cathode compartments and increases the amount of acid recovered in the anode compartment.
- the vapor derived in step b2) is compressed and then used in step b) for heating the medium in the first reactor.
- the compression increases the temperature and the pressure of the vapor.
- step c) is preferably utilized in accordance with the following successive steps: c1) washing of the solid inorganic phase with water,
- step c2) recycling the wash solution obtained in step cl) into the first reactor used in step b),
- step c3 discharging the inorganic phase remaining in step cl).
- Step c1) dissolves any organic salts entrained in the solid inorganic phase. This washing solution is returned according to c2) in the first reactor, so that these organic salts in the actual
- step b) Reprocessing process introduced and from these as described above also other recyclables are obtained.
- valuable materials can also be obtained from the heavy metal-containing inorganic fraction.
- step c) the following steps are carried out successively after step b) and before step c): d) passing the liquid medium obtained in step b) into a second reactor,
- step c) the following steps are carried out successively after step c): d) passing the liquid medium obtained in step c) into a second reactor,
- step c) the separation of any solid inorganic phase contained in the liquid medium - to perform at different process times, namely before or after the forwarding of the medium in the second reactor.
- the provision of a second reactor is particularly advantageous when the medium has a high water content.
- media having a very high water content for example sewage sludge or manure, a particularly high concentration of the organic compounds in the medium is made possible.
- step e) The lower temperature of not more than 80 ° C. chosen in step e) compared to step b) ensures that the organic compounds formed during the previously carried out hydrolysis (step b)) are not decomposed and therefore remain unchanged in the liquid medium. From the vapor formed in step e), valuable substances can be obtained analogously to the vapor already formed in step b). That after Step e) obtained liquid medium contains in a particularly high concentration of organic compounds and is a further treatment, such as a distillation, easily accessible, so that more recyclables can be obtained.
- step e) is preferably utilized in accordance with the following successive steps: el) passing the vapor from the second reactor into a second washing column, e2) mixing the vapor with sulfuric acid or phosphoric acid to form ammonium sulfonate (s) or ammonium phosphate ( en), where in the swamp the
- Anode space in the wash column and derivation of the recyclables formed in the cathode compartment, in particular an ammonia solution is provided.
- the liquid medium obtained after the last of steps a) to e), depending on the sequence after step c) or after step e), is recycled according to the following successive successive steps: f) forwarding, in particular continuous Passing the liquid medium into a third reactor,
- step h) deriving the vapor formed in step g) and utilizing the vapor, i) deriving the suspension remaining in step h) from heat transfer oil and a solid organic phase and recycling the suspension.
- the medium remaining in step e) is usually of very viscous consistency.
- step g) the viscous medium is dispersed in the heat transfer oil, whereby a very good heat transfer to the viscous medium is possible.
- the vapor formed contains organic compounds, in particular alkanes, ketones, esters, alcohols and ethers, and is thus rich in valuable substances. From the remaining suspension, valuable substances can also be obtained, in particular according to further preferred embodiments of the invention, as will be explained below.
- step h) The vapor derived in step h) is preferably utilized in accordance with the following successive steps: hl) discharging the formed vapor into a distillation column,
- step h3 deriving the organic compounds condensed in step h2) and deriving the vapor remaining in step h2).
- the distillation column is therefore operated in such a way that organic compounds which have a lower vapor pressure than water in the bottom of the
- step i) Obtain distillation column and a vapor containing mainly water vapor rises in the top of the distillation column.
- the organic compounds represent another valuable material, which is used in particular directly for energy production or for the production of other recyclables.
- the remaining vapor in particular contains fission gases, which are utilized thermally or materially, for example in heat engines with internal combustion, such as gas engines, diesel engines or gas turbines.
- the suspension of heat transfer oil and solid organic phase derived according to step i) is preferably utilized in accordance with the following successive steps: 11) discharging the suspension into a separator and supplying a water-containing phase, wherein an aqueous phase and a phase floating on it form in the separator,
- the solid organic phase is formed by organic salts. These are initially not accessible to distillation. By step il), these organic salts are converted into an aqueous phase. By step i3), further distillable organic compounds are obtained from the organic salts. By step i4) they come into contact with the heat carrier oil (floating phase), in which they are eluted. According to step i2), the heat transfer oil and thus won the other
- the aqueous phase fed in step il) is the liquid medium obtained in step i4).
- the aqueous phase still contains potassium carbonate, optionally residues of potassium hydroxide and in particular potassium phosphate and represents an electrolyte solution.
- DC / DC voltage at the cathode hydrogen and potassium hydroxide is formed. Potassium hydroxide forms from potassium hydroxide. At the anode, phosphoric acid and oxygen are formed. The won Potassium hydroxide is preferably used in step a).
- the phosphoric acid can be passed, for example, to the wash columns (step b2) and step e2)).
- the recovered hydrogen is also known to be a valuable material and is for example ideal for energy production in an internal combustion engine or in a fuel cell.
- the liquid medium obtained in step b), preferably in step c), is pyrolyzed at a temperature of at most 500 ° C. Since the medium has previously been filtered by means of a separation device (step c), the medium is advantageously free of any heavy metal-containing inorganic compounds. Since the medium, with the exception of alkali compounds, further free of all inorganic components, the pyrolysis proceeds without or at least largely without side reactions, so compared to conventional pyrolysis significantly higher yields of liquid products can be achieved.
- step b) According to a second alternative, preferred variant, in step b),
- liquid medium obtained is gasified, in particular by means of entrained flow gasification, fluidized bed gasification or fixed bed gasification, preferably a countercurrent fixed bed gasification.
- the liquid medium obtained in step b), preferably in step c), is burned.
- step c) The carrying out of said thermal processes with the medium from which any solid inorganic phase was previously separated according to step c) is advantageous, since the thermal processes in these variants proceed without or largely without side reactions. Such are compared to conventional thermal
- Fig. 1 shows a schematic flow diagram of a method according to an embodiment of the invention.
- liquid medium liquids, suspensions and emulsions and mixtures of suspensions and emulsions.
- the invention relates to a process for the recovery of valuable substances from organic compounds contained in waste or chemical elements contained therein.
- Suitable organic compounds are in particular triacylglycerols (fats and fatty oils), proteins, carbohydrates or lignins.
- the chemical elements contained in waste and suitable for recovering valuable materials are in particular nitrogen,
- Phosphorus and / or potassium which are mostly components of the molecules of the organic compounds. They are therefore in an "organic matrix.” Nitrogen is found, for example, in the amino acids of proteins, and organic phosphates, such as phospholipids, which are known to be constituents of cell membranes, nucleic acids, or phytates found in corn and soybeans, contain phosphorus in bound ones In addition, waste may also contain inorganic phosphates, for example calcium phosphate derived from animal bones, which are often contaminated with heavy metals, for example effluents
- Organic waste fermentation plants contain copper or zinc.
- a candidate waste is, for example, manure containing potassium as potassium salts, nitrogen as amines or ammonium (NH 4 ) and phosphorus as phosphate (s).
- Other suitable wastes for recovering valuable materials are in particular waste
- the waste is preferably a biogenic waste (waste of biogenic origin).
- the following table (Table 1) contains information on some of their biogenic waste information about their usual dry mass and the mass proportions of potassium, nitrogen and phosphorus. The given numerical values are to be understood as guideline values.
- the respective waste 1 is introduced into a mixer 2 (stream a), in which an aqueous potassium hydroxide solution ("potassium hydroxide", stream a ') is introduced and mixed with the waste, so that a liquid, pumpable
- the medium is formed. Any decomposition reactions in the mixer 2 of the organic compounds contained in the waste contribute to a homogenization of the medium and improve its pumpability.
- the medium is heated in the mixer 2 to, for example, 60 ° to 70 ° C, in order to accelerate or favor the decomposition reactions.
- the amount of added potassium hydroxide solution and / or the concentration of the potassium hydroxide solution is or are preferably selected such that the liquid medium formed has a pH of 9.0 to 14.0, in particular of at least 12.0.
- the quantitative ratio of organic dry matter contained in the waste to potassium hydroxide is 1: 1 to 1: 2.
- the resulting homogenized liquid medium is passed on to a hydrolysis reactor 3 (substance stream b).
- the waste 1 and the aqueous potassium hydroxide solution can also be introduced directly into the hydrolysis reactor 3, ie without having been previously mixed with one another in the mixer 2, in particular via a lock system.
- the hydrolysis reactor 3 has an agitator 3a and a heating jacket 3b and is preferably operated at ambient pressure and therefore at an absolute pressure of approximately 1.0 bar. In particular, the hydrolysis reactor 3 can be operated at an absolute pressure of 0.02 bar to 1.0 bar.
- the liquid medium is heated with stirring to 100 ° C to 140 ° C, in particular to at most 120 ° C, whereby all organic compounds contained in the medium are hydrolyzed alkaline. In this case, organic salts are formed from the majority of the organic compounds, which go into solution in the liquid medium.
- the anions of the organic salts are derived in a known manner, in particular from organic acids, from proteins or from carbohydrates.
- the anions are derived, for example, from the fatty acids of the triacylglycerols.
- the organic salts formed therefore usually contain one or more carboxylate group (s) (R-COO-). In the described embodiment arise - due to the use of potassium hydroxide - in particular organic potassium salts.
- inorganic potassium salts which dissolve in the medium.
- Any bound nitrogen such as amino acids derived from proteins, is or are decomposed in a known manner via nucleophilic substitutions, in particular via SN2 reactions, at least for the most part into ammonia, organic acids and their salts.
- a sulfide solution in particular a potassium sulfide solution, introduced in a manner not shown and thus causes the precipitation of the heavy metals.
- carbon dioxide is also formed during the hydrolysis, which reacts with potassium hydroxide solution to give potassium carbonate which is readily soluble in the medium.
- Calcium salts derived especially from plants and animal bones, are formed, at least in large part, with the carbon dioxide-insoluble calcium carbonates.
- the solid inorganic phase may also contain other ingredients.
- the vapor which forms during the hydrolysis consists of water vapor and gaseous nitrogen compounds, such as, for example, ammonia or amines, and is passed from the hydrolysis reactor 3 into a wash column 4 (substance stream c).
- the remaining hydrolyzed liquid medium is transferred together with the resulting solid inorganic phase from the hydrolysis reactor 3 in a mechanical separator 5 (stream d) and in this, as will be described, further processed.
- the vapors containing nitrogen compounds conducted into the scrubber column 4 are treated with phosphoric acid (H 3 PO 4) which is introduced into the reactor in a known manner from above
- Washing column 4 is sprayed (substance Ström c '). This forms in the bottom of the wash column 4, an ammonium phosphate, for example, ( ⁇ 4 ) 3 ⁇ 0 4 , containing solution. A largely nitrogen compounds free vapors rises in the top of the wash column 4.
- the phosphoric acid and sulfuric acid H 2 S0 4
- H 2 S0 4 phosphoric acid and sulfuric acid
- the ammonium ions are - in contrast to the
- the resulting in the bottom of the wash column 4 solution is in at least one
- the electrochemical cell 6 has two half cells separated by a membrane, namely a cathode space and an anode space, wherein the solution from the wash column 4 is introduced into the anode space.
- electrolysis is from the respective ammonium salts in
- Ammonia solution and the recovered hydrogen are derived from the cathode space (stream f) and can be utilized in a known manner as recovered recyclables.
- the recovered phosphoric or sulfuric acid and the oxygen formed are introduced from the anode compartment in the wash column 4 (Stoff ström e ').
- the rising in the top of the scrubbing column 4, largely free of nitrogen compounds vapors is first passed through a compressor 7, whereby the temperature and pressure of the vapor are increased, and then in the heating jacket 3b of
- Hydrolysis reactor 3 passed (substance Ström g). By increasing the pressure of the vapor, the boiling point of the water contained in the vapor increases, so that the vapor of the vapor in the heating mantle 3b condenses at a temperature> 100 ° C.
- Phase change heat of the water contained in the liquid medium is thus recovered and for heating the medium in the hydrolysis reactor 3 a subsequent batch to the already preferred for hydrolysis temperature of 100 ° C to 140 ° C used.
- the forming from the vapor condensate is derived from the heating mantle 3b (substance Ström h), wherein by means of a valve 8 the
- the hydrolyzed liquid medium is, as already mentioned, from the hydrolysis reactor 3 in the separation device 5, which, for example, a mesh filter or a
- Peeler centrifuge is transferred (substance Ström d).
- the abovementioned solid inorganic phase is separated from the hydrolyzed liquid medium and subsequently washed preferably with water, whereby in particular any remaining organic salts, in particular organic potassium salts, are dissolved out.
- the washing solution obtained during the washing process is recycled in a manner not shown in the hydrolysis reactor 3 and further evaporated together with the next batch in the manner already described.
- the solid inorganic phase is mechanically removed from the separator 5 and represents a heavy metal-containing inorganic fraction (stream j), from which heavy metals, such as copper, chromium or cadmium, are recovered as recyclables.
- the filtered liquid medium contains the dissolved organic salts, such as organic potassium salts, dissolved
- the reactor 9 is preferably identical in construction to the hydrolysis reactor 3, therefore has a
- the filtered liquid medium conducted into the reactor 9 is heated to 50 ° C. to 80 ° C., in particular to at least 70 ° C., under an absolute pressure of 0.02 bar to 0.9 bar.
- the pressure in the reactor 9 is generated by a vacuum pump 12, which, as will be explained, is arranged behind a heat exchanger 11.
- any nitrogen compounds still present in the liquid medium for example ammonia and amines, accumulate in themselves in the reactor 9 forming vapors, which is passed into a wash column 10 (Stoff Ström k). Furthermore, it is ensured by the conditions prevailing in the reactor 9 that the organic compounds formed in the previous hydrolysis are not decomposed and therefore remain unchanged in the liquid medium.
- the scrubbing column 10 there is a pressure substantially matching the pressure in the reactor 9.
- the scrubbing column 10 is operated in a manner analogous to the already mentioned scrubbing column 4.
- the phosphoric acid or sulfuric acid used for the gas scrubbing in the scrubbing column 10 also comes from the
- the vapors which are at least substantially freed from nitrogen compounds, are removed from the top of the wash column 10 via a
- Heat exchanger 11 is passed and condensed in this, wherein the heat of condensation is derived from the heat exchanger 11. Water vapor and any fission gases,
- carbon dioxide are discharged via the aforementioned vacuum pump 12.
- still warm medium is of liquid or viscous consistency still contains dissolved organic salts, dissolved inorganic phosphates, dissolved potassium carbonate and possibly even small amounts of nitrogen compounds and further up to about 20% water.
- This medium is passed on in a reactor 13, in particular via a valve 8 'slowly metered into this (mass flow m).
- the reactor 13 is preferably identical in construction to the hydrolysis reactor 3, therefore has an agitator 13a and a heating jacket 13b.
- a heat transfer oil such as a paraffin, which improves the heat transfer to the medium.
- Heating jacket 13b to a temperature of 220 ° C to 380 ° C, preferably up to 300 ° C, particularly preferably up to 230 ° C, heated.
- a correspondingly heated thermal oil is passed through the heating jacket 13b.
- hot exhaust gases can be introduced from a combined heat and power plant.
- the absolute pressure in the reactor 13 is 0.02 bar to 0.9 bar and is generated by means of a vacuum pump 16, the exact position of which follows from the description below.
- the vapor forming in the reactor 13 from the medium comprises volatile organic compounds, in particular alkanes, ketones, esters, alcohols and ethers, and water, and is passed on to a distillation column 14, which is likewise evacuated with evacuated reactor 13 (stream n).
- a distillation column 14 In the distillation column 14, the organic compounds contained in the introduced vapor are condensed by spraying water.
- the distillation column 14 is operated in such a way that the organic compounds which have a lower vapor pressure than water accumulate in the bottom of the distillation column 14, and a vapor containing mainly steam rises in the top of the distillation column 14. The in the swamp the
- Distillation column 14 accumulated high-boiling organic compounds are derived (stream o) and represent another valuable material, which is used in particular directly for energy or for the production of other recyclables.
- the vapor containing mainly water vapor is passed over the head of the
- Distillation column 14 discharged from this (substance Ström p) and then condensed in a heat exchanger 15.
- Any fission gases formed in the distillation column 14, for example carbon dioxide, are passed together with the vapor from the top of the distillation column 14 into the heat exchanger 15 and discharged therefrom by means of the vacuum pump 16.
- the fission gases can be used in particular thermally or materially, for example in heat engines with internal
- Combustion such as gas engines, diesel engines or gas turbines.
- the reactor 13 remains a suspension of the heat transfer oil and a solid phase, which of inorganic and organic salts (in the embodiment, in particular potassium salts).
- a solid phase which of inorganic and organic salts (in the embodiment, in particular potassium salts).
- the solid phase also comprises phosphates (in the exemplary embodiment in particular
- organic and inorganic salts are polar compounds which the
- Distillation are initially inaccessible. Due to the high temperatures in the reactor 13 usually decomposes at least a portion of the salts present in also distillable organic compounds, which are forwarded to the distillation column 14 (substance Ström n). In order to recover further, likewise distillable organic compounds from the organic and inorganic salts remaining in the suspension, the procedure is as described below.
- the suspension of thermal oil and the solid organic and inorganic salts is transferred from the reactor 13 in a separator 17 (stream q). Further, in the separator 17 from a conversion device 18 derived water-containing reflux (stream q ') is fed. In this return, in the separator 17, the organic and inorganic salts suspended in the thermal oil are eluted, i. The salts are "dissolved out" of the heat transfer oil In the separator 17 forms - due to the different densities - a floating phase 20, which is formed by the heat transfer oil, and an organic phase containing the aqueous phase 21. The floating heat transfer oil from the separator 17 continuously in the
- Reactor 13 slides back (stream m ') in which it again improves the heat transfer to the medium.
- the heat transfer oil in the separator 17 also serves as an extractant for organic compounds which are contained in the return (substance Ström q ') and are passed into the reactor 13 in this way. This organic
- the conversion device 18 is, for example, according to the not yet published Austrian
- the aqueous phase is in particular in at least one einkammrigen, designed as a flow cell electrolytic cell, which is an electrode package of at least two connected to a voltage source
- the process parameters (residence time of the electrolyte solution in the electrolysis cell, the temperature of the aqueous phase, the pH of the
- Electrolyte solution, the ion concentration of the electrolytic solution, the current and voltage of the voltage source) are adjusted so that the organic salts are decomposed in the electrolytic solution, wherein formed from the inorganic and organic salts at the anode organic compounds of various classes, including alkanes become. Further, at the anode carbon dioxide and oxygen and at the cathode mainly hydrogen is formed. The hydrogen has a hydrogenating effect, so that organic compounds of various classes are also formed in the area of the cathode.
- One possible reaction in the conversion device 18 is a Kolbe electrolysis, in which the organic salts are converted, for example, to alkanes, to further organic compounds and to carbon dioxide. Formed carbon dioxide reacts with the still existing potassium hydroxide to potassium carbonate. Furthermore, the organic compounds may also be partially oxidized. As indicated in Fig. 1, the conversion takes place in the
- Conversion device 18 preferably with the supply of water.
- the conductivity of the electrolyte solution is improved, since a possible exceeding of the limit conductivity of a saturated salt solution is avoided.
- the returned from the conversion device 18 in the separator 17 return (stream q ') is correspondingly hydrous, whereby the already described elution of the organic salts in the separator 17 and taking place in this phase separation are made possible.
- the liquid mixture obtained in the conversion device 18 is placed in the
- aqueous phase obtained in the reactor 13 can be treated several times in the manner described, so that the organic and inorganic salts are substantially completely removed from the aqueous phase and recovered from these recyclables.
- Conversion device 18 the almost completely freed of organic salts aqueous phase from the separator 17 in an electrochemical cell 19 is passed (stream s).
- the aqueous phase still contains inorganic salts, in
- potassium salts potassium carbonate, potassium hydroxide and potassium phosphate and represents an electrolyte solution.
- Potassium carbonate was, as already explained, in the hydrolysis in the hydrolysis reactor 3 and in the
- Potassium hydroxide is derived from the added potassium hydroxide solution.
- Potassium phosphate is derived from any phosphorous contained in the waste, which has been reacted with the potassium hydroxide in the hydrolysis reactor 3, as also already mentioned.
- the electrochemical cell 19 is preferably divided with a membrane permeable to potassium ions into two half-cells - an anode space and a cathode space.
- the potassium ions migrate through the membrane into the cathode compartment and together with the water supplied form hydrogen and potassium hydroxide at the cathode, whereby potassium hydroxide is formed.
- Anode space form at the anode phosphoric acid, oxygen and carbon dioxide.
- the potassium hydroxide solution is removed from the cathode compartment, the phosphoric acid is removed from the anode compartment, and the gases formed are also diverted away from oxygen and hydrogen.
- the feed line causes an osmotic gradient in the direction of the anode space.
- the recovered potassium hydroxide solution is preferably used in the manner already described in the mixer 2 (stream a '). Any excess of potassium hydroxide solution is used in particular commercially.
- the phosphoric acid can be passed, for example, to the washing columns 4 and 10 and used for the washing operations described (substance flows c 'and k').
- the recovered potassium hydroxide solution and the phosphoric acid obtained are further valuable substances.
- the hydrogen obtained in the electrochemical cell 19 is also known to be a valuable material and is ideally suited for example
- substances or valuable substances are obtained from the following group, depending on the respective waste:
- Inorganic constituents which in particular include metals (except those which belong to the first main group of the Periodic Table), the metals being obtained in particular as salts, oxides or hydroxides,
- the invention is not limited to the embodiment described. Instead of potassium hydroxide solution (stream a '), an aqueous potassium carbonate solution, an aqueous sodium hydroxide solution or an aqueous sodium carbonate solution may be used. Furthermore, mixtures of such solutions can also be used.
- Sodium hydroxide solution and sodium carbonate solution are particularly advantageous for the hydrolysis of already sodium-containing wastes, for example in the case of waste of marine origin, such as algae-containing waste in particular.
- a potassium hydroxide solution potassium hydroxide solution
- a Natriumhydroxidlsöung sodium hydroxide solution
- the medium contains dissolved organic salts, dissolved inorganic phosphates and up to about 20% water.
- a first possibility is pyrolysis of the medium originating from the reactor 9.
- the molecular weight of the organic molecules contained in the waste was significantly reduced.
- the medium is preferably pyrolyzed at a temperature of at most 500 ° C.
- potassium acetate could have been formed as the organic salt during the hydrolysis. This decomposes in the pyrolysis already at about 300 ° C in acetone and potassium carbonate.
- the medium since the medium has been filtered by the separator 5, the medium is free of any heavy metal-containing inorganic compounds. In contrast to conventional pyrolysis in which the heavy metals are produced in the pyrolysis coke, the pyrolysis coke formed in the pyrolysis of a medium originating from the reactor 9 is unproblematic in this respect. As the medium, except for
- the medium originating from the reactor 9 is burnt.
- the medium originating from the reactor 9 is gasified. The gasification takes place in particular by means of a flight Stromggasung, a
- Fluidized bed gasification or a fixed bed gasification is particularly suitable.
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Abstract
Description
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Application Number | Priority Date | Filing Date | Title |
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ATA50842/2017A AT520454B1 (de) | 2017-10-03 | 2017-10-03 | Verfahren zur Gewinnung von Wertstoffen |
PCT/EP2018/076020 WO2019068524A1 (de) | 2017-10-03 | 2018-09-25 | Verfahren zur gewinnung von wertstoffen |
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EP3692012A1 true EP3692012A1 (de) | 2020-08-12 |
EP3692012C0 EP3692012C0 (de) | 2023-11-01 |
EP3692012B1 EP3692012B1 (de) | 2023-11-01 |
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EP18781999.0A Active EP3692012B1 (de) | 2017-10-03 | 2018-09-25 | Verfahren zur gewinnung von wertstoffen |
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US (1) | US20200299204A1 (de) |
EP (1) | EP3692012B1 (de) |
AT (1) | AT520454B1 (de) |
WO (1) | WO2019068524A1 (de) |
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AT523088A1 (de) | 2019-10-15 | 2021-05-15 | Schelch Dr Michael | Verfahren und System zum Energiemanagement |
CN112250618B (zh) * | 2020-11-06 | 2023-07-07 | 内蒙古佳瑞米精细化工有限公司 | 一种多氯代吡啶化合物与导热油混合物的分离方法 |
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FR2808792B1 (fr) * | 2000-05-12 | 2003-03-21 | Ecopsi | Procede de traitement d'un effluent contenant notamment de l'azote et/ou du phosphore et/ou des matieres organiques et/ou des metaux lourds |
GB0126458D0 (en) * | 2001-11-03 | 2002-01-02 | Accentus Plc | Ammonia removal |
US6905600B2 (en) * | 2001-11-16 | 2005-06-14 | Ch2M Hill, Inc. | Method and apparatus for the treatment of particulate biodegradable organic waste |
DE102008055508A1 (de) * | 2008-12-11 | 2010-06-17 | Herzberg, Patrik Von | Verfahren zur Aufbereitung von Abfällen |
DE102010033251A1 (de) * | 2010-08-03 | 2012-02-09 | Sabine Ludewig | Verfahren zur Herstellung von Ammoniumcarbonat, Feststoffdünger und Brauch-/Trinkwasser aus Gülle von Nutztieren oder Gärresten aus Biogasanlagen. |
DE102011105473A1 (de) * | 2011-06-20 | 2012-12-20 | Sabine Ludewig | Verfahren zur hygienischen Aufbereitung von ammoniumhaltigen Substanzen biogenen Ursprungs |
KR101624258B1 (ko) * | 2014-07-01 | 2016-05-26 | 주식회사이피에스솔루션 | 질소와 인 제거, 회수 장치 및 그 방법 |
-
2017
- 2017-10-03 AT ATA50842/2017A patent/AT520454B1/de active
-
2018
- 2018-09-25 US US16/753,297 patent/US20200299204A1/en not_active Abandoned
- 2018-09-25 EP EP18781999.0A patent/EP3692012B1/de active Active
- 2018-09-25 WO PCT/EP2018/076020 patent/WO2019068524A1/de unknown
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Publication number | Publication date |
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WO2019068524A1 (de) | 2019-04-11 |
US20200299204A1 (en) | 2020-09-24 |
AT520454A3 (de) | 2021-10-15 |
EP3692012C0 (de) | 2023-11-01 |
AT520454B1 (de) | 2021-12-15 |
EP3692012B1 (de) | 2023-11-01 |
AT520454A2 (de) | 2019-04-15 |
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